TAC format check

Client

Extract or verify the 8-digit TAC prefix from IMEI context.

About TAC format check

Validate Type Allocation Code (first 8 IMEI digits). Processing runs in your browser—Toolcore does not need your paste for the core operation on this page.

Format and checksum rules only—no live registry, carrier, or customs lookup from this page.

How to use

Paste or type in the main field, then read the output below. Use Load example when available, or open the page with ?q= / ?qb= so tickets and agents share the same input.

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Nearby workflows on Toolcore

  • IMEI & IMEISV checker — 15-digit GSM IMEI: TAC/SNR split and Luhn verification; 14-digit check hint or 16-digit IMEISV segmentation—no carrier lookup; browser-only. Useful when the same row uses a different identifier ruleset.
  • IMSI format check — Validate International Mobile Subscriber Identity length and digit shape. Useful when the same row uses a different identifier ruleset.
  • MEI format check — Validate Mobile Equipment Identifier (14 hex digits). Useful when the same row uses a different identifier ruleset.
  • UUID validator — Validate UUID and GUID strings: version, RFC 4122 variant, bulk paste—browser-only, no upload. Useful when the same row uses a different identifier ruleset.

Common use cases

  • TAC format check for quick local checks without uploading data.
  • Copy results into tickets, docs, or classroom notes.

Common mistakes to avoid

  • Unexpected input shape

    See the intro and how-to notes for accepted formats.

FAQ

Is processing local?

Yes—this runs entirely in your browser.

Agent prefill?

Use q or qb for the main text field when supported.

More tools

Related utilities you can open in another tab—mostly client-side.